System Online SRD · LoRa · 868 MHz · 433 MHz
Radio Engineering & Manufacture

Radio Systems
Designed,
Built & Delivered

Qradio specialises in the project management and manufacture of radio-based equipment — from initial concept through to production-ready hardware. Our focus is LoRa long-range wireless and SRD radio systems for industrial, commercial and monitoring applications.

25+
Years Experience
10km
LoRa Range
ISM
Band Certified
Signal Monitor / Active Channels
  • 869.525 MHz SRD860 LoRa·SF7
  • 433.920 MHz ISM433 FSK·50k
  • 868.100 MHz EU868 LoRaWAN
  • 869.250 MHz Alarms NBFM
🔋
LoRa Radio
Long-range spread-spectrum up to 10 km line-of-sight
🔌
SRD Devices
ISM 433 / 868 / 869 MHz unlicensed band modules
Project Mgmt
Spec to production: firmware, PCB, enclosure
🔭
CE Compliance
RED directive, ETSI EN300-220 radio standards
What We Do

End-to-End Radio Engineering

From feasibility study to finished, tested hardware — Qradio manages every stage of your radio product development.

🔎
Feasibility & Specification
We assess your requirements against regulatory constraints, link budgets and propagation modelling to produce a clear technical specification before a single component is purchased.
🔥
LoRa System Design
Specialists in Semtech LoRa spread-spectrum technology. Gateway placement, spreading factor selection, duty-cycle planning and end-device firmware on RP2040 using MicroPython.
🧰
SRD Radio Manufacture
We design and manufacture short-range device equipment operating in the 433 MHz and 868/869 MHz ISM bands — including custom PCB design, radio module selection, RF design and enclosure specification.
📊
Monitoring & Telemetry
Temperature, humidity, digital I/O and analogue sensor monitoring transmitted wirelessly and delivered to web dashboards. Integration with existing SCADA and IoT platforms.
📄
Firmware Development
Embedded firmware in MicroPython on RP2040-based platforms, with full protocol stack implementation — from raw radio frames to IP-based cloud connectivity via GSM/LTE modules.
Web & Cloud Integration
Through our parent company Finchdata, we offer web interface development to display your radio data — live dashboards, alerts, historical logging and CSV export. No expensive proprietary software required.
Core Technology

LoRa — Long Range
Wireless Done Right

LoRa (Long Range) uses Semtech's spread-spectrum chirp modulation to achieve remarkable range — often 5–10 km outdoors on 10 mW — making it ideal for asset tracking, remote monitoring and alarm systems where battery life is critical.

  • Operates in licence-free SRD 868 MHz and 433 MHz ISM bands across Europe
  • Spreading factors SF7–SF12 trade data rate for range and sensitivity
  • Sub-μA sleep currents — years of battery life on a single cell
  • ETSI EN300-220 compliant; duty-cycle managed for regulatory compliance
  • LoRaWAN network server integration or proprietary star/mesh topology
  • Ideal for alarm monitoring, cold-chain telemetry, site security
Technology Details →
// Qradio · Active Channel Config

Band        EU868 / SRD860
Frequency   868.1 – 869.65 MHz
Protocol    LoRa / LoRaWAN 1.0
Power       14 dBm (25 mW)
Sensitivity  -137 dBm @ SF12
Range       5–10 km LOS

// SRD433 Channel
Frequency   433.05 – 434.79 MHz
Modulation  OOK / FSK / LoRa
Power       10 mW ERP

// Alarm band
Frequency   869.2125 – 869.2375
Category    EN300-220 Cat. 1
Duty        100% permitted
Industry Partners & Reference Sources

Trusted Radio Industry Resources

We work with and reference industry-leading radio module manufacturers and distributors.

Technology in Action

Equipment & Platforms

From LoRa radio modules to embedded control platforms — the hardware at the heart of every Qradio system.

Radio monitoring system
Radio Monitoring
Always-on wireless telemetry — monitoring sensors, assets and environments around the clock.
Radio control systems
Radio Control Systems
Wireless control and command links for remote actuation and industrial automation.
eByte E22 LoRa radio module SX1262
eByte E22 LoRa Module
SX1262-based 868/915 MHz LoRa transceiver — up to 22 dBm, 6.5 km range, SPI interface.
Raspberry Pi Pico RP2040 microcontroller board
Raspberry Pi Pico RP2040
Our preferred MCU platform — dual-core ARM, MicroPython, USB and extensive GPIO. In production until 2036.

■ eByte E22-900M22S SX1262 LoRa module  |  ■ Raspberry Pi Pico RP2040  |  Illustrations: Qradio

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